@mixin transition($transition-property, $transition-time, $method) {
    -webkit-transition: $transition-property $transition-time $method;
    -moz-transition: $transition-property $transition-time $method;
    -ms-transition: $transition-property $transition-time $method;
    -o-transition: $transition-property $transition-time $method;
    transition: $transition-property $transition-time $method;
}
